This article introduces the basic concepts of the Spherical Geometry, the basic formula (Sine and Cosine Formula) of the spherical triangle and the application of the basic formula of spherical triangle in navigation for calculating the altitude and azimuth of celestial bodies.
文章介绍了球面几何的一些基本概念和球面三角形的基本公式(正余弦定理),以及球面三角形的基本公式在航海学中求天体计算高度和计算方位中的应用。
Based on the two spacecrafts geometric relationship in spherical triangles,the kinematical model was modeled and proved to be available.
介绍了基于球面三角形求解机动时间和方位角的航天器交会运动学模型,并通过计算证明方法的可行性,这类机动不受时间约束,是多冲量交会机动的崭新思路。
(Dead Reckoning) position, which carries out it by solving spherical triangle.
用解球面三角形的方法,通过两天体的球面距离,求得星位角,从而求得船位的经纬度。
the trigonometry of spherical triangles.
球面三角形的三角学。
Spherical Surface Triangular BEM of Spherical Electrode in 3-D Electrostatic Fields
球形电极三维静电场的球面三角形边界元算法
CAD System for Spherical Triangle Based on OpenGL;
基于OpenGL的球面三角形的CAD系统
Application of Spherical Triangle in Spacecraft Rendezvous Maneuver;
球面三角形在航天器交会机动中的应用
the front pin in the triangular arrangement of ten pins.
三角形排列的保龄球的最前面一个。
spherical trigonometry
球面三角 (法,学)
any triangular sail set forward of the foremast.
在最前面的三角形的帆。
triangular shaped wire
断面为三角形的钢丝
a prism whose bases are triangles.
底面是三角形的棱柱。
A triangular pyramid.
三角形底面的金字塔
Entitled to sickness benefit
（组成三角形、矩形等平面图形的）边
To measure by using trigonometry.
用平面直角三角形计算工具测量
the base of a triangle, pyramid, etc
三角形的底边、 角锥体的底面等.
calculate the area of the triangle thus formed
计算这样形成的三角形的面积
any shape that is triangular in cross section.
横截面部分是三角形的任何形状。
Put four small triangles under the big rectangle.
把四个小三角形放在大长方形的下面。
an octahedron with eight equilateral triangles as faces.
有八个正三角形面的八面体。
a tetrahedron with four equilateral triangular faces.
有四个等边三角形面的四面体。